The Meinl Sonic Energy Essence Crystal Singing Bowls are made of high-purity quartz to create a pleasant aura with their sound and design. Their long-lasting tone spreads outward by gently tapping or rubbing, filling your surroundings with an ethereal tone and calming positive energy. Our Essence Crystal Singing Bowls are characterized by a distinctively clear, rich, and deep sound that can send the player and listeners into a relaxed state. These instruments are lightweight and easy to hold. With their intricately handcrafted shape and specific tuning, the bowls may vary slightly in height to be perfectly in tune. You can use our crystal singing bowls for a variety of purposes: Relaxation therapy, chakra healing, meditation, physiotherapy, sound therapy, yoga, adjusting your emotional state, or even for room decorating. Each crystal singing bowl comes with a white silicone ring, a Crystal Silicone Rod (CSBRM), and a sturdy carrying bag.